This quick, full-body workout will help you stay fit no matter where you are. With no equipment needed to work your entire body, there really are no excuses. Plus, it's short! This workout, including warmup and cooldown, takes between 20 and 30 minutes. It all depends on how much rest time you take between circuits.
Directions: Warm up with five minutes of light cardio, then perform this five-exercise circuit three times. Cool down with three minutes of stretching.